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<div class="title">/opt/GoogleCode/popot/trunk/popot-2.01/src/neighborhood.h</div>  </div>
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<div class="contents">
<a href="neighborhood_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef POPOT_NEIGHBORHOOD_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define POPOT_NEIGHBORHOOD_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include &lt;vector&gt;</span>
<a name="l00005"></a>00005 <span class="preprocessor">#include &lt;algorithm&gt;</span>
<a name="l00006"></a>00006 <span class="preprocessor">#include &quot;<a class="code" href="exceptions_8h.html">exceptions.h</a>&quot;</span>
<a name="l00007"></a>00007 <span class="preprocessor">#include &quot;<a class="code" href="maths_8h.html">maths.h</a>&quot;</span>
<a name="l00008"></a>00008 
<a name="l00009"></a>00009 <span class="keyword">namespace </span>popot
<a name="l00010"></a>00010 {
<a name="l00011"></a>00011   <span class="keyword">namespace </span>PSO
<a name="l00012"></a>00012   {
<a name="l00013"></a>00013 
<a name="l00014"></a>00014     <span class="keyword">namespace </span>particle
<a name="l00015"></a>00015     {
<a name="l00016"></a>00016       <span class="keyword">template</span>&lt;<span class="keyword">typename</span> PROBLEM, <span class="keyword">typename</span> POSITION_INITIALIZER&gt; <span class="keyword">class </span>BaseParticle;
<a name="l00017"></a>00017     }
<a name="l00018"></a>00018 
<a name="l00019"></a><a class="code" href="namespacepopot_1_1PSO_1_1neighborhood.html">00019</a>     <span class="keyword">namespace </span>neighborhood
<a name="l00020"></a>00020     {
<a name="l00021"></a>00021 
<a name="l00028"></a>00028       <span class="keyword">template</span>&lt;<span class="keyword">typename</span> PARTICLE&gt;
<a name="l00029"></a>00029       <span class="keyword">class </span><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html" title="A neighborhood contains a vector of particles belonging to the neighborhood as well as a pointer (not...">Neighborhood</a>
<a name="l00030"></a>00030       {
<a name="l00031"></a>00031       <span class="keyword">public</span>:
<a name="l00032"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a77cf5aaa7977d6af076a15f13df47b35">00032</a>         <span class="keyword">typedef</span> <span class="keyword">typename</span> PARTICLE<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a77cf5aaa7977d6af076a15f13df47b35">::BestType</a> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a77cf5aaa7977d6af076a15f13df47b35">BestType</a>;
<a name="l00033"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4aa79c81d6b429d0af3d8d5b9e1a7aac">00033</a>         <span class="keyword">typedef</span> PARTICLE <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4aa79c81d6b429d0af3d8d5b9e1a7aac">InNeighborhoodType</a>;
<a name="l00034"></a>00034 
<a name="l00035"></a>00035       <span class="keyword">protected</span>:
<a name="l00036"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">00036</a>         std::vector&lt;InNeighborhoodType *&gt; <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>;
<a name="l00037"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">00037</a>         <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a77cf5aaa7977d6af076a15f13df47b35">BestType</a> *<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a>;
<a name="l00038"></a>00038 
<a name="l00039"></a>00039       <span class="keyword">public</span>:
<a name="l00040"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a16d4db0ed52be60f4c0841f79f4fbfcd">00040</a>         <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a16d4db0ed52be60f4c0841f79f4fbfcd">Neighborhood</a>(<span class="keywordtype">void</span>) : <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a>(0) 
<a name="l00041"></a>00041         { }
<a name="l00042"></a>00042 
<a name="l00043"></a>00043 
<a name="l00044"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a5e147d65a88d20c8c2237b5c8022f7a1">00044</a>         <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a16d4db0ed52be60f4c0841f79f4fbfcd">Neighborhood</a>(<span class="keyword">const</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html" title="A neighborhood contains a vector of particles belonging to the neighborhood as well as a pointer (not...">Neighborhood</a> &amp; other)
<a name="l00045"></a>00045         {
<a name="l00046"></a>00046           <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a> = other.<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a>;
<a name="l00047"></a>00047           <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.resize(other.<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4a0e5f4fc3cdae4192c525acc67a067b">size</a>());
<a name="l00048"></a>00048           std::copy(other.<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.begin(), other.<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.end(), <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.begin());
<a name="l00049"></a>00049 
<a name="l00050"></a>00050         }
<a name="l00051"></a>00051 
<a name="l00052"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#ad3cca3dd04edfce85d430329fcf9a806">00052</a>         <span class="keyword">virtual</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#ad3cca3dd04edfce85d430329fcf9a806">~Neighborhood</a>(<span class="keywordtype">void</span>){
<a name="l00053"></a>00053           <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a58488255082a4e1c869094138c70fe23">clear</a>();
<a name="l00054"></a>00054         }
<a name="l00055"></a>00055 
<a name="l00056"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#ada957dfc1b032896058bfc9296a8e4d4">00056</a>         <span class="keywordtype">void</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#ada957dfc1b032896058bfc9296a8e4d4">add</a>(<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4aa79c81d6b429d0af3d8d5b9e1a7aac">InNeighborhoodType</a> * p)
<a name="l00057"></a>00057         {
<a name="l00058"></a>00058           <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.push_back(p);
<a name="l00059"></a>00059         }
<a name="l00060"></a>00060 
<a name="l00061"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4a0e5f4fc3cdae4192c525acc67a067b">00061</a>         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4a0e5f4fc3cdae4192c525acc67a067b">size</a>()<span class="keyword"> const</span>
<a name="l00062"></a>00062 <span class="keyword">        </span>{
<a name="l00063"></a>00063           <span class="keywordflow">return</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.size();
<a name="l00064"></a>00064         }
<a name="l00065"></a>00065 
<a name="l00066"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a58488255082a4e1c869094138c70fe23">00066</a>         <span class="keywordtype">void</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a58488255082a4e1c869094138c70fe23">clear</a>()
<a name="l00067"></a>00067         {
<a name="l00068"></a>00068           <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.clear();
<a name="l00069"></a>00069         }
<a name="l00070"></a>00070 
<a name="l00071"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#ad5ca713cf88ea489cb83285b68a45d5b">00071</a>         <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4aa79c81d6b429d0af3d8d5b9e1a7aac">InNeighborhoodType</a> * <span class="keyword">get</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i) <span class="keyword">const</span>
<a name="l00072"></a>00072         {
<a name="l00073"></a>00073           <span class="keywordflow">if</span>(i &gt;= 0 &amp;&amp; i &lt; <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4a0e5f4fc3cdae4192c525acc67a067b">size</a>())
<a name="l00074"></a>00074             <span class="keywordflow">return</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>[i];
<a name="l00075"></a>00075           <span class="keywordflow">else</span>
<a name="l00076"></a>00076             <span class="keywordflow">throw</span> <a class="code" href="classpopot_1_1Exception_1_1IndexOutOfRange.html">popot::Exception::IndexOutOfRange</a>(i, <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4a0e5f4fc3cdae4192c525acc67a067b">size</a>());
<a name="l00077"></a>00077         }
<a name="l00078"></a>00078 
<a name="l00079"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#ace6efd8468f01962cbc7df57cbd29dc1">00079</a>         <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a77cf5aaa7977d6af076a15f13df47b35">BestType</a> * <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#ace6efd8468f01962cbc7df57cbd29dc1">findBest</a>(<span class="keywordtype">void</span>)
<a name="l00080"></a>00080         {
<a name="l00081"></a>00081           <span class="keywordflow">if</span>(<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.size() == 0)
<a name="l00082"></a>00082             <span class="keywordflow">throw</span> <a class="code" href="classpopot_1_1Exception_1_1FindBestFromEmptyNeighborhood.html">popot::Exception::FindBestFromEmptyNeighborhood</a>();
<a name="l00083"></a>00083 
<a name="l00084"></a>00084           <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a> = &amp;(<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>[0]-&gt;getBestPosition());
<a name="l00085"></a>00085           <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 1 ; i &lt; <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>.size() ; ++i)
<a name="l00086"></a>00086             {
<a name="l00087"></a>00087               <span class="keywordflow">if</span>(<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>[i]-&gt;getBestPosition().compare(*<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a>) &lt; 0)
<a name="l00088"></a>00088                 <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a> = &amp;(<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a85a8e51aab7cec91ccc22c5a8af486ad">_particles</a>[i]-&gt;getBestPosition());
<a name="l00089"></a>00089             }
<a name="l00090"></a>00090 
<a name="l00091"></a>00091           <span class="keywordflow">return</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a>;
<a name="l00092"></a>00092         }
<a name="l00093"></a>00093 
<a name="l00094"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#abeacf97df9e08bd961d73982aed5554a">00094</a>         <span class="keywordtype">void</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#abeacf97df9e08bd961d73982aed5554a">updateBest</a>(<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4aa79c81d6b429d0af3d8d5b9e1a7aac">InNeighborhoodType</a> * p)
<a name="l00095"></a>00095         {
<a name="l00096"></a>00096           <span class="keywordflow">if</span>(<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a> == 0)
<a name="l00097"></a>00097             <span class="keywordflow">throw</span> <a class="code" href="classpopot_1_1Exception_1_1BestParticleNotInitialized.html">popot::Exception::BestParticleNotInitialized</a>();
<a name="l00098"></a>00098 
<a name="l00099"></a>00099           <span class="keywordflow">if</span>(p-&gt;getBestPosition()-&gt;compare(*<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a>) &lt; 0)
<a name="l00100"></a>00100             <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a> = &amp;(p-&gt;getBestPosition());
<a name="l00101"></a>00101         }
<a name="l00102"></a>00102 
<a name="l00103"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#afb4ec35e8fc5310e7cb2fe4d7a575c97">00103</a>         <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a77cf5aaa7977d6af076a15f13df47b35">BestType</a>* <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#afb4ec35e8fc5310e7cb2fe4d7a575c97">getBest</a>(<span class="keywordtype">void</span>)
<a name="l00104"></a>00104         {
<a name="l00105"></a>00105           <span class="keywordflow">if</span>(<a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a> == 0)
<a name="l00106"></a>00106             <span class="keywordflow">throw</span> <a class="code" href="classpopot_1_1Exception_1_1BestParticleNotInitialized.html">popot::Exception::BestParticleNotInitialized</a>();
<a name="l00107"></a>00107           <span class="keywordflow">return</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#aeb7d873ba6207ada4a7064dd09ec2905">_best_particle</a>;
<a name="l00108"></a>00108         }
<a name="l00109"></a>00109 
<a name="l00110"></a><a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a291fce7bea8613d6073751e2ab32477e">00110</a>         <span class="keywordtype">void</span> <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a291fce7bea8613d6073751e2ab32477e">print</a>(<span class="keywordtype">void</span>)
<a name="l00111"></a>00111         {
<a name="l00112"></a>00112           std::cout &lt;&lt; <span class="stringliteral">&quot;Neighborhood hosting &quot;</span> &lt;&lt; <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4a0e5f4fc3cdae4192c525acc67a067b">size</a>() &lt;&lt; <span class="stringliteral">&quot; particles : &quot;</span> &lt;&lt; std::endl;
<a name="l00113"></a>00113           std::cout &lt;&lt; <span class="stringliteral">&quot;Best particle &quot;</span> &lt;&lt; <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#afb4ec35e8fc5310e7cb2fe4d7a575c97">getBest</a>() &lt;&lt; <span class="stringliteral">&quot; with fitness : &quot;</span> &lt;&lt; <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#afb4ec35e8fc5310e7cb2fe4d7a575c97">getBest</a>()-&gt;getFitness() &lt;&lt; std::endl;
<a name="l00114"></a>00114           <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0 ; i &lt; <a class="code" href="classpopot_1_1PSO_1_1neighborhood_1_1Neighborhood.html#a4a0e5f4fc3cdae4192c525acc67a067b">size</a>() ; ++i)
<a name="l00115"></a>00115             std::cout &lt;&lt; <span class="stringliteral">&quot;Particle &quot;</span> &lt;&lt; i &lt;&lt; <span class="stringliteral">&quot; : &quot;</span> &lt;&lt; <span class="keyword">get</span>(i) &lt;&lt; std::endl;
<a name="l00116"></a>00116         }
<a name="l00117"></a>00117       };
<a name="l00118"></a>00118 
<a name="l00119"></a>00119 
<a name="l00126"></a>00126       <span class="comment">/*</span>
<a name="l00127"></a>00127 <span class="comment">        template&lt;typename PARTICLE, typename PARAMS&gt;</span>
<a name="l00128"></a>00128 <span class="comment">        class ProbabilisticNeighborhood</span>
<a name="l00129"></a>00129 <span class="comment">        {</span>
<a name="l00130"></a>00130 <span class="comment">        public:</span>
<a name="l00131"></a>00131 <span class="comment">        typedef typename PARTICLE::BestType BestType;</span>
<a name="l00132"></a>00132 <span class="comment">        typedef PARTICLE InNeighborhoodType;</span>
<a name="l00133"></a>00133 <span class="comment"></span>
<a name="l00134"></a>00134 <span class="comment">        protected:</span>
<a name="l00135"></a>00135 <span class="comment">        std::vector&lt;InNeighborhoodType *&gt; _particles;</span>
<a name="l00136"></a>00136 <span class="comment">        const BestType *_best_particle;</span>
<a name="l00137"></a>00137 <span class="comment"></span>
<a name="l00138"></a>00138 <span class="comment">        public:</span>
<a name="l00139"></a>00139 <span class="comment">        ProbabilisticNeighborhood(void){</span>
<a name="l00140"></a>00140 <span class="comment">        _best_particle = 0;</span>
<a name="l00141"></a>00141 <span class="comment">        };</span>
<a name="l00142"></a>00142 <span class="comment"></span>
<a name="l00143"></a>00143 <span class="comment">        virtual ~ProbabilisticNeighborhood(void){</span>
<a name="l00144"></a>00144 <span class="comment">        clear();</span>
<a name="l00145"></a>00145 <span class="comment">        };</span>
<a name="l00146"></a>00146 <span class="comment"></span>
<a name="l00147"></a>00147 <span class="comment">        void add(InNeighborhoodType * p)</span>
<a name="l00148"></a>00148 <span class="comment">        {</span>
<a name="l00149"></a>00149 <span class="comment">        _particles.push_back(p);</span>
<a name="l00150"></a>00150 <span class="comment">        }</span>
<a name="l00151"></a>00151 <span class="comment"></span>
<a name="l00152"></a>00152 <span class="comment">        int size() const</span>
<a name="l00153"></a>00153 <span class="comment">        {</span>
<a name="l00154"></a>00154 <span class="comment">        return _particles.size();</span>
<a name="l00155"></a>00155 <span class="comment">        }</span>
<a name="l00156"></a>00156 <span class="comment"></span>
<a name="l00157"></a>00157 <span class="comment">        void clear()</span>
<a name="l00158"></a>00158 <span class="comment">        {</span>
<a name="l00159"></a>00159 <span class="comment">        _particles.clear();</span>
<a name="l00160"></a>00160 <span class="comment">        }</span>
<a name="l00161"></a>00161 <span class="comment"></span>
<a name="l00162"></a>00162 <span class="comment">        InNeighborhoodType * get(int i)</span>
<a name="l00163"></a>00163 <span class="comment">        {</span>
<a name="l00164"></a>00164 <span class="comment">        if(i &gt;= 0 &amp;&amp; i &lt; size())</span>
<a name="l00165"></a>00165 <span class="comment">        return _particles[i];</span>
<a name="l00166"></a>00166 <span class="comment">        else</span>
<a name="l00167"></a>00167 <span class="comment">        throw popot::Exception::IndexOutOfRange(i, size());</span>
<a name="l00168"></a>00168 <span class="comment">        }</span>
<a name="l00169"></a>00169 <span class="comment"></span>
<a name="l00170"></a>00170 <span class="comment">        BestType * findBest(void)</span>
<a name="l00171"></a>00171 <span class="comment">        {</span>
<a name="l00172"></a>00172 <span class="comment">        if(_particles.size() == 0)</span>
<a name="l00173"></a>00173 <span class="comment">        throw popot::Exception::FindBestFromEmptyNeighborhood();</span>
<a name="l00174"></a>00174 <span class="comment"></span>
<a name="l00175"></a>00175 <span class="comment">        // Collect the fitnesses</span>
<a name="l00176"></a>00176 <span class="comment">        double fitnesses[_particles.size()];</span>
<a name="l00177"></a>00177 <span class="comment">        for(unsigned int i = 0 ; i &lt; _particles.size() ; ++i)</span>
<a name="l00178"></a>00178 <span class="comment">        fitnesses[i] = _particles[i]-&gt;getBestPosition()-&gt;getFitness();</span>
<a name="l00179"></a>00179 <span class="comment"></span>
<a name="l00180"></a>00180 <span class="comment">        // Perform a Gibbs sampling with this array of fitnesses</span>
<a name="l00181"></a>00181 <span class="comment">        // to select the local best</span>
<a name="l00182"></a>00182 <span class="comment">        _best_particle = &amp;(_particles[popot::math::random_gibbs_from_array(fitnesses,_particles.size(), PARAMS::inv_temperature())]-&gt;getBestPosition());</span>
<a name="l00183"></a>00183 <span class="comment"></span>
<a name="l00184"></a>00184 <span class="comment">        return _best_particle;</span>
<a name="l00185"></a>00185 <span class="comment">        }</span>
<a name="l00186"></a>00186 <span class="comment"></span>
<a name="l00187"></a>00187 <span class="comment">        void updateBest(InNeighborhoodType * p)</span>
<a name="l00188"></a>00188 <span class="comment">        {</span>
<a name="l00189"></a>00189 <span class="comment">        if(_best_particle == 0)</span>
<a name="l00190"></a>00190 <span class="comment">        throw popot::Exception::BestParticleNotInitialized();</span>
<a name="l00191"></a>00191 <span class="comment"></span>
<a name="l00192"></a>00192 <span class="comment">        if(p-&gt;getBestPosition()-&gt;compare(_best_particle) &lt; 0)</span>
<a name="l00193"></a>00193 <span class="comment">        _best_particle = &amp;(p-&gt;getBestPosition());</span>
<a name="l00194"></a>00194 <span class="comment">        }</span>
<a name="l00195"></a>00195 <span class="comment"></span>
<a name="l00196"></a>00196 <span class="comment">        const BestType * getBest(void)</span>
<a name="l00197"></a>00197 <span class="comment">        {</span>
<a name="l00198"></a>00198 <span class="comment">        return _best_particle;</span>
<a name="l00199"></a>00199 <span class="comment">        }</span>
<a name="l00200"></a>00200 <span class="comment">        };</span>
<a name="l00201"></a>00201 <span class="comment">      */</span>
<a name="l00202"></a>00202 
<a name="l00203"></a>00203 
<a name="l00204"></a>00204 
<a name="l00205"></a>00205     } <span class="comment">// namespace neighborhood</span>
<a name="l00206"></a>00206   } <span class="comment">// namespace PSO</span>
<a name="l00207"></a>00207 } <span class="comment">// namespace popot</span>
<a name="l00208"></a>00208 
<a name="l00209"></a>00209 <span class="preprocessor">#endif // POPOT_NEIGHBORHOOD_H</span>
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